Pretty much what it says on the tin - the Mimic from Dark Souls.
Example Prompt:
Positive: score_9, score_8_up, score_7_up, score_6_up, score_5_up, score_4_up, mimic dark souls, long tongue, sharp teeth male solo, (night starry_sky:1.5) dramatic_lighting (river:1.2) embers ruins <lora:Mimic__Dark_Souls__PonyXL:0.9>
Negative: score_5, score_4, simple_background